DK142007B - Electric switch with click spring. - Google Patents
Electric switch with click spring. Download PDFInfo
- Publication number
- DK142007B DK142007B DK78578AA DK78578A DK142007B DK 142007 B DK142007 B DK 142007B DK 78578A A DK78578A A DK 78578AA DK 78578 A DK78578 A DK 78578A DK 142007 B DK142007 B DK 142007B
- Authority
- DK
- Denmark
- Prior art keywords
- contact
- key
- click spring
- spring
- housing
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
- H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
- H01H13/562—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force making use of a heart shaped cam
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
Landscapes
- Push-Button Switches (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Description
142007142007
Opfindelsen angår en elektrisk omskifter med en i forhold til et hus bevægelig tast, som ved et tryk på tasten i een retning bevæges melløn to stillinger og herunder får en 1 tasten indlagt klikfjeder til at smutte fra den ene til den anden yderstilling.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to an electric switch having a key movable relative to a housing, which, at the push of a key in one direction, moves two positions, including a one-tapped click spring to slide from one to the other outer position.
55
Omskiftere af denne art er kendt fra det lyske fremlæggelsesskrift nr. 1042071. I denne kendte omskifterkonstruktion er klikfjederens midte indsat i et leje i tasten og klikfjederens ender er indspændt mellem to lejer i en metalbøjle, der tillige tjener som kontaktstykke til at 10 danne forbindelse mellem enten det ene eller det andet af to sæt kontaktben. Ved kontakter af denne art må kontaktstykket, for at kunne holde på den heri Indsatte klikfjeder, nødvendigvis være et stift metalstykke, hvilket bevirker, at kontakten mellem kontaktstykket og kontakt;benene bliver en ren berøringskontakt, som etableres, uden at 15 det ene af kontaktens metalstykker glider eller skraber mod det andet.Switches of this kind are known from the grooving specification No. 1042071. In this known switch construction, the center of the click spring is inserted into a bearing in the key and the ends of the click spring are clamped between two bearings in a metal bracket, which also serves as a contact piece for connecting either one or the other of two sets of contact pins. For contacts of this kind, in order to be able to hold the click spring inserted herein, the contact piece must necessarily be a rigid metal piece, which causes the contact between the contact piece and contact; the legs become a pure contact contact which is established without any of the contact's pieces of metal sliding or scraping against the other.
En sådan ren berøringskontakt er mindre pålidelig end en under skrabning etableret kontakt, da støvkorn eller et oxidlag kan øge kontaktmodstanden betydeligt og ikke vil blive fjernet eller gennembrudt, som det sker ved skrabning. Endvidere har det vist sig, at 20 disse kendte kontakter, når de anvendes i et telefoni kredsløb, giver anledning til mikrofonisk støj, hvilket også er en ulempe.Such a clean touch contact is less reliable than a contact established during scraping, as dust grains or an oxide layer can significantly increase contact resistance and will not be removed or pierced as it does during scraping. In addition, when used in a telephony circuit, these 20 known contacts cause microphone noise, which is also a disadvantage.
Den foreliggende opfindelse har til formål at angive en elektrisk . omskifter af den angivne art, ved hvilken disse ulemper er undgået.The present invention is intended to provide an electric. switch of the specified type by which these disadvantages are avoided.
25 Dette er ifølge opfindelsen opnået ved, at klikfjederen er indspændt som en bye mellem to lejer i modstående sider i huset, og at dens midterdel er indlagt i en bro, som bærer fjedrende kontaktame, og at broen er indlagt med dobbeltsidigt spillerum i en åbning i tasten.This is achieved according to the invention in that the click spring is clamped as a byte between two bearings on opposite sides of the housing, and that its middle part is enclosed in a bridge bearing a springy contact frame and that the bridge is enclosed with double-sided clearance in an opening. in the key.
30 Derved opnås dels, at nødvendigheden for at gøre kontaktstykket stift falder bort, da det nu ikke skal bære den indspændte klikfjeder, og i stedet kan gøres fjedrende, så der kan opnås skrabende kontakt, dels at kontakten er blevet betydelig mindre mikrofonisk støjende, hvilket formenes at skyldes, at klikfjederen, som etablerer kontakttrykket, nu 35 ikke som 1 den kendte konstruktion sidder mellem en bevægelig tast og 2 142007 de i huset indbyggede kontaktben, men i den elektriske omskifter ifølge opfindelsen virker mellem lejer i huset og kontaktben i samme hus og, som følge af spillerummet for broen i tasten, slet ikke berører denne.30 It is thereby achieved in part that the necessity of making the contact piece rigid fails, since it now does not have to carry the clamped click spring, and can instead be made resilient so that scraping contact can be obtained and secondly that the contact has become considerably less microphone noisy, which This is due to the fact that the click spring which establishes the contact pressure is now not in the known construction between a movable key and the contact pins built into the housing, but in the electrical switch according to the invention acts between bearings in the housing and contact legs in the same housing. and, due to the clearance of the bridge in the key, does not affect it at all.
5 Opfindelsen vil i det følgende blive nærmere beskrevet under henvisning til tegningen, på hvilken fig. 1 viser en snittegning af en kendt elektrisk omskifter og fig. 2 og 3 to på hinanden vinkelrette snit i en udførelsesform for en elektrisk omskifter ifølge opfindelsen.The invention will now be described in more detail with reference to the drawing, in which: FIG. 1 is a sectional view of a known electrical switch and FIG. 2 and 3 are two perpendicular sections in one embodiment of an electric switch according to the invention.
1010
Ved den på fig. 1 viste kendte elektriske omskifter betegner 1 et hus, i hvilket en tast 3 er længdeforskydelig udefra under påvirkning af en spiralfjeder 14. En klikfjeder 7 sidder med sit midterparti fast i et nul i tasten 3. Dens ender er indspændt således i lejer i en som 15 kontakt 9 udformet metalbøjle, at klikfjederen danner en bue, der enten kan vende opad eller nedad. I fig. 1 er buen vist vendende opad, hvorved metal bøjlen kommer til at ligge an mod kontaktben 12. Ved tryk nedad på tasten 3 smutter klikfjederen om til sin nedadbøjede tilstand, og når tasten 3 slippes, vil spiralfjederen 14 føre tasten 3 op, indtil 20 kontakten 9 støder mod de i huset 1 indbyggede kontaktben 10. Det vil ses, at da kontakten 9 har form som en metal bøjle, der skal holde klikfjederen 7 i spænd, får den karakter af en stiv kontaktbøjle, som bliver ført til berøring med kontaktparrene 10, henholdsvis 12. Denne berøring vil danne kontakt mellem kontakterne 10, henholdsvis 12, 25 dersom dette ikke hindres af et støvkorn eller af en på metaldelene dannet oxidhinde. Enhver form for bevægelse mellem tasten 3 og huset 1 vil udsætte berøringsforbindelsen mellem kontaktbenene og kontaktbøjlen for lignende bevægelser, som de, der findes mellem kul kornene i en kul kornsmikrofon, hvilket formenes at kunne være forklaring på disse 30 kontakters støjføl somhed.In the embodiment of FIG. 1 represents a housing in which a key 3 is longitudinally displaceable from outside under the influence of a coil spring 14. A click spring 7 is secured with its center portion to a zero in the key 3. Its ends are thus clamped in bearings in a 15 contact 9 formed a metal brace that the click spring forms an arc that can either face upwards or downwards. In FIG. 1, the arc is shown facing upwards, whereby the metal bracket will engage contact pin 12. By pressing down on key 3, the click spring switches to its downward bending state, and when key 3 is released, coil spring 14 will push key 3 up to the 20 contact. 9 bears against the contact pins 10 built into the housing 1. It will be seen that since the contact 9 is in the form of a metal bracket which is intended to hold the click spring 7 in tension, it receives the character of a rigid contact bracket which is brought into contact with the contact pairs 10. 12. This contact will contact the contacts 10 and 12, 25, respectively, if this is not obstructed by a dust grain or an oxide formed on the metal parts. Any movement between the key 3 and the housing 1 will expose the contact between the contact legs and the contact bracket for movements similar to those found between the coal grains of a coal grain microphone, which may be explained by the noise sensitivity of these contacts.
En udførelsesform for en elektrisk kontakt ifølge opfindelsen er vist på fig. 2 og 3, hvor ækvivalente dele er forsynet med samme nenvisningsbetegnelser, som på fig.l.An embodiment of an electrical contact according to the invention is shown in FIG. 2 and 3, wherein equivalent parts are provided with the same reference numerals as in FIG.
En tast 3 er indsat i et hus 1 under et låg 2. Tasten 3 har en 35 142007 3 udskæring 5, i hvilken er indlagt en bro 6. Udskæringen er i tastens bevægelsesretning så meget større end broen 6, at der er plads til spillerum 25 og 26 både over og under broen 6. I broen 6 er indsat en klikfjeder 7, hvis ender er indspændt mellem lejer 8 i modstående vægge 5 i huset 1. Klikfjederen er udformet som en bladfjeder og er plan, når den ikke er indspændt.A key 3 is inserted into a housing 1 under a lid 2. The key 3 has a cutout 5 into which is inserted a bridge 6. The cutout is in the direction of movement of the key so much larger than the bridge 6 that there is room for clearance. 25 and 26, both above and below the bridge 6. A bridge spring 7 is inserted into the bridge 6, the ends of which are clamped between bearings 8 in opposite walls 5 of the housing 1. The click spring is designed as a leaf spring and is planar when not clamped.
I broen 6 er indsat kontaktfjedre 9, i hvis kontaktflade der er uformet tosidede udbulinger 11, som ved kontakt med' kontaktbenene 10, 10 henholdsvis 12 som følge af fjedringen i kontaktfjedrene 9 vil skrabe mod og derved rense kontakterne, så støv og oxidhinder ikke vil forøge kontaktmodstanden.In the bridge 6 are inserted contact springs 9, in the contact surface of which are formed two-sided bulges 11, which upon contact with the contact legs 10, 10 and 12, respectively, as a result of the spring in the contact springs 9 will scrape against and thereby clean the contacts so that dust and oxide obstructions will not increase the contact resistance.
En fikseringspind 17 er indlagt i et hul 18 i tasten 3 støttet i huset 15 1 i sin ene ende af et vippeleje 19 og i sin anden ende af et njertekurvespor 20, som tjener til at fastholde fikseringspinden 17 i een af to mulige fikseringsstillinger, en øvre og en nedre. En spiralfjeder 14 er indsat mellem bunden af huset 1 og en tap 15 på tasten 3.A fixing pin 17 is inserted into a hole 18 in the key 3 supported in the housing 15 1 at one end of a rocker bearing 19 and at the other end of a nip curve groove 20 which serves to hold the fixing pin 17 in one of two possible fixing positions, a upper and lower. A coil spring 14 is inserted between the bottom of the housing 1 and a pin 15 on the key 3.
2020
Den elektriske omskifter ifølge opfindelsen virker på følgende måde:The electric switch according to the invention works as follows:
Hvis tasten 3 står i den viste, øvre stilling, danner kontaktfjedrene 9, efter at have udført en skrabende benvægelse som følge af kontaktfjederens bøjning, kontakt med kontaktbenene 10, I denne 25 stilling er tasten 3 fikseret af fikseringspinden 17, der som vægtstang er løftet til sin øverste stilling og er fikseret 1 hjertekurvefiS øverste fikspunkt. Trykkes der i nedadgående retning på tasten 3, vil bladfjederen 7 med et hørbart klik smutte fra sin viste opadbøjede stilling til en nedadbøjet stilling. Herunder vil spiralfjederen 14 30 blive sammentrykket og kontaktfjedrene 9 vil afbryde de elektriske forbindelser mellem kontaktbenene 10 og i stedet under skrabende bevægelse danne elektriske forbindelser mellem kontaktbenene 12. Samtidigt vil fikseringspinden smutte fra sit øverste fikspunkt i hjertekurvesporet til sit nederste fikspunkt. Omskifterens dimensioner 35 er nu fastsat således, at knækfjederen 7 i denne stilling holder broen således svævende i udskæringen 5, at der er omtrent lige storeIf the key 3 is in the upper position shown, the contact springs 9, after performing a scraping leg movement due to the contact of the contact spring, form contact with the contact legs 10. In this position, the key 3 is fixed by the fixing pin 17, which is raised as a lever. to its top position and is fixed 1 heart curve fiS top fixing point. If the key 3 is pressed downwards, the leaf spring 7 will, with an audible click, slide from its shown upward position to a downward position. Below, the coil spring 14 30 will be compressed and the contact springs 9 will disconnect the electrical connections between the contact legs 10 and instead, under scraping motion, form electrical connections between the contact legs 12. At the same time, the fixing pin will slip from its upper fixed point in the heart curve groove to its lower fixed point. The dimensions 35 of the switch are now set such that the crack spring 7 in this position keeps the bridge so suspended in the cutout 5 that there are approximately equal
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK78578AA DK142007B (en) | 1978-02-22 | 1978-02-22 | Electric switch with click spring. |
| DE2904899A DE2904899C2 (en) | 1978-02-22 | 1979-02-09 | Electric switch |
| US06/011,699 US4234769A (en) | 1978-02-22 | 1979-02-12 | Electrical switch having a floating bridge member |
| SE7901416A SE442252B (en) | 1978-02-22 | 1979-02-16 | ELECTRICAL SWITCH |
| FI790572A FI67155C (en) | 1978-02-22 | 1979-02-20 | ELEKTRISK OMKOPPLARE |
| FR7904244A FR2418534A1 (en) | 1978-02-22 | 1979-02-20 | ELECTRIC SWITCH WITH SUSPENDED CROSS-MOUNT |
| NLAANVRAGE7901388,A NL176616C (en) | 1978-02-22 | 1979-02-21 | ELECTRIC PUSH-BUTTON SWITCH. |
| NO790585A NO147163C (en) | 1978-02-22 | 1979-02-21 | ELECTRIC KEY SWITCH WITH CLICK FIRE. |
| GB7906351A GB2016810B (en) | 1978-02-22 | 1979-02-22 | Electrical switch |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK78578 | 1978-02-22 | ||
| DK78578AA DK142007B (en) | 1978-02-22 | 1978-02-22 | Electric switch with click spring. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK78578A DK78578A (en) | 1979-08-23 |
| DK142007B true DK142007B (en) | 1980-08-04 |
| DK142007C DK142007C (en) | 1980-12-15 |
Family
ID=8097532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK78578AA DK142007B (en) | 1978-02-22 | 1978-02-22 | Electric switch with click spring. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4234769A (en) |
| DE (1) | DE2904899C2 (en) |
| DK (1) | DK142007B (en) |
| FI (1) | FI67155C (en) |
| FR (1) | FR2418534A1 (en) |
| GB (1) | GB2016810B (en) |
| NL (1) | NL176616C (en) |
| NO (1) | NO147163C (en) |
| SE (1) | SE442252B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE444487B (en) * | 1981-05-29 | 1986-04-14 | Asea Ab | MANOVER MECHANISM FOR ELECTRICAL CONNECTORS |
| JPS59150125U (en) * | 1983-03-29 | 1984-10-06 | 北陸電気工業株式会社 | push button switch |
| JPS6029327U (en) * | 1983-08-03 | 1985-02-27 | ホシデン株式会社 | key switch |
| US4620077A (en) * | 1985-02-19 | 1986-10-28 | Cts Corporation | Integral switch connector with remote actuator |
| US5130506A (en) * | 1990-02-28 | 1992-07-14 | Eaton Corporation | Low current switching apparatus having detent structure providing tactile feedback |
| US5671841A (en) * | 1995-08-14 | 1997-09-30 | Calculagraph Co. | Method and apparatus for switching mechanism |
| EP1162521B1 (en) | 2000-06-07 | 2010-03-17 | ETA SA Manufacture Horlogère Suisse | Snap-action actuating device and watch provided with such a device |
| FI20055281L (en) * | 2005-06-02 | 2006-12-03 | Polar Electro Oy | Transmission mechanism |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE350055C (en) * | 1920-05-08 | 1922-03-13 | Geza Von Martiny | Electric momentary switch |
| FR543589A (en) * | 1921-11-16 | 1922-09-05 | New simplified snap-action switch without joints in the contact parts | |
| DE1006926B (en) * | 1953-10-29 | 1957-04-25 | Siemens Ag | Snap switch |
| DE1042071B (en) * | 1956-03-13 | 1958-10-30 | Siemens Ag | Snap switch |
| US3200227A (en) * | 1960-09-29 | 1965-08-10 | Square D Co | Carrier frame for movable contact and combination thereof with snap acting switch |
| GB1098388A (en) * | 1965-09-03 | 1968-01-10 | Schaltbau Gmbh | Quick-action electric switch |
| DE1590479A1 (en) * | 1965-09-28 | 1970-07-09 | Schaltbau Gmbh | Electrical snap switch |
| US3699276A (en) * | 1971-04-05 | 1972-10-17 | Appleton Electric Co | Linear push plunger electrical switch with tubular shroud arc prevention means |
| GB1452324A (en) * | 1973-08-14 | 1976-10-13 | Post Office | Electrical switches |
| DE2360167A1 (en) * | 1973-12-03 | 1975-06-05 | Marquardt J & J | Snap-action push-button switch - has moving contact arm with snap-action leaf spring between two support bearings |
| DE2360168A1 (en) * | 1973-12-03 | 1975-06-05 | Marquardt J & J | SWITCHES, IN PARTICULAR BUTTONS |
| US4064381A (en) * | 1976-02-18 | 1977-12-20 | Westinghouse Electric Corporation | Pushbutton switch assembly having floating type bridging contact and lost motion actuator |
-
1978
- 1978-02-22 DK DK78578AA patent/DK142007B/en not_active IP Right Cessation
-
1979
- 1979-02-09 DE DE2904899A patent/DE2904899C2/en not_active Expired
- 1979-02-12 US US06/011,699 patent/US4234769A/en not_active Expired - Lifetime
- 1979-02-16 SE SE7901416A patent/SE442252B/en not_active IP Right Cessation
- 1979-02-20 FI FI790572A patent/FI67155C/en not_active IP Right Cessation
- 1979-02-20 FR FR7904244A patent/FR2418534A1/en active Granted
- 1979-02-21 NO NO790585A patent/NO147163C/en unknown
- 1979-02-21 NL NLAANVRAGE7901388,A patent/NL176616C/en not_active IP Right Cessation
- 1979-02-22 GB GB7906351A patent/GB2016810B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NO147163C (en) | 1983-02-09 |
| FI67155B (en) | 1984-09-28 |
| FI790572A (en) | 1979-08-23 |
| GB2016810B (en) | 1982-06-09 |
| NL176616C (en) | 1985-05-01 |
| NO147163B (en) | 1982-11-01 |
| DK78578A (en) | 1979-08-23 |
| NL176616B (en) | 1984-12-03 |
| NO790585L (en) | 1979-08-23 |
| SE7901416L (en) | 1979-08-23 |
| FI67155C (en) | 1985-01-10 |
| SE442252B (en) | 1985-12-09 |
| DK142007C (en) | 1980-12-15 |
| GB2016810A (en) | 1979-09-26 |
| NL7901388A (en) | 1979-08-24 |
| US4234769A (en) | 1980-11-18 |
| DE2904899A1 (en) | 1979-08-23 |
| FR2418534A1 (en) | 1979-09-21 |
| FR2418534B1 (en) | 1982-02-26 |
| DE2904899C2 (en) | 1982-12-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |